摘要:
The present invention provides novel cell-permeable succinates and cell permeable precursors of succinateaimed at increasing ATP-production in mitochondria. The main part of ATP produced and utilized in the eukaryotic cell originates from mitochondrial oxidative phosphorylation, a process to which high-energy electrons are provided by the Kreb's cycle. Not all Kreb's cycle intermediates are readily permeable to the cellular membrane, one of them being succinate. The provision of the novel cell permeable succinates is envisaged to allow passage over the cellular membrane and thus the cell permeable succinates can be used to enhance mitochondrial ATP-output.
摘要:
Whilst methodologies for the Kinetic Resolution of alcohols are well established, no analogous direct methods exist for the highly selective, direct catalytic Kinetic Resolution of thiols ( i . e ., R-SH). The present invention relates to a method for resolving stereoisomeric mixtures of thiols. In particular, the present invention relates to purely organocatalytic mediated resolution of enantiomeric mixtures of thiols without the need for enzymes. Also disclosed are some novel catalysts. Such catalysts may comprise a cinchona alkaloid-derived moiety.
摘要:
The invention relates to novel benzocycloheptenes of general formula (I), wherein R1, R2 and SK have the meanings cited in the description. The novel compounds exhibit a selective estrogenic activity on bones and are suitable for producing medicaments, especially for preventing and treating osteoporosis.
摘要:
Diamine compounds represented by general formula (I) and acid addition salts thereof, and a brain protecting agent containing the same, wherein R1 to R6 may be the same or different from one another and each represents hydrogen, halogen, hydroxy, lower alkyl, lower alkoxy, lower acyloxy, lower alkoxycarbonyloxy, lower alkylsulfonyloxy or amino, among which the lower alkyl and lower alkoxy may be each substituted by halogen or phenyl; R7 and R8 may be the same or different from each other and each represents lower alkyl, or they may be combined together to form alkylene having 1 to 4 carbon atoms; A and A' may be the same or different from each other and each represents a single bond, -O-, -NH-, -NHCO←, -CONH←, -NHCOO←, -NHCONH-, -SONH2← or -COS←, wherein symbol '←' represents a bond to Y or Y'; and Y and Y' may be the same or different from each other and each represents lower alkylene or lower alkenylene. They have an excellent activity of protecting the brain, are highly safe, and can exhibit potent activities by oral administration. Medicines containing them are effecting in treating or preventing the progress of cerebral dysfunctions accompanying cerebral hemorrhage, cerebral infarction, subarachnoid hemorrhage, transient cerebral ischemic attack, or cerebrovascular diseases.
摘要:
Herstellung von Cyclohexantrioncarbonsäurethiolestern der Formel I in der R¹ und R² für ggf. substituiertes Alkyl, Alkenyl, Alkinyl, Cycloalkyl, Benzyl oder Phenyl stehen, R² darüberhinaus Wasserstoff bedeutet, indem man eine Cyclohexantrionverbindung II mit Hydroxylamin oder Hydroxylamin-O-sulfonsäure in einem inerten Lösungsmittel bei Temperaturen von 0 bis 150°C umsetzt zu Cyclohexantrionverbindungen III anschließend die Verbindungen III mit einem Mercaptan IV R²-SH IV in Gegenwart einer wasserfreien Säure HX umsetzt zu Cyclohexantrionimidothioestersalzen V wobei X für den Säurerest steht und die Verbindungen V zu den Cyclohexantrioncarbonsäurethiolestern I hydrolysiert.
摘要:
There are disclosed certain new hydroxyl-and-cyano-substituted sulphur-containing compounds, organoleptically useful compounds, process of augmenting or enhancing the aroma or taste of consumable materials, and perfume compositions and detergent compositions.